Mechanical movement



W. H.FOLSONI.

MECHANICAL MOVEMENT.

APPLICATION man mm1. |911.

Patented Dec.v 2, 1919.

W. H. FOLSOM.

MECHANICAL MOVEMENT.

APPLICATION FILED APR. 1|. 1917.

1,323,851. Patented Da. 2,1919.

2 SHEETS-SHEET 2.

my@ zwaai,

, 'rn STATES PATENT OFFICE.

WILLIAM H. FoLsoM, oF MINNEAPoLIs, MINNESOTA.

MECHANICAL MOVEMENT.

To all whom z5 may concern:

Be it known thatI, WILLIAM H. FoLsoM,

a citizen of the United States, residing at Minneapolis, in the countyof Hennepin and State of Minnesota, have invented certain new and usefulImprovements in Mechanical Movements, of which the following is aspecification.

My invention has for its object to provide a simple and eficientmechanism for converting and transmitting power. It

While, as above indicated, the device isy capable of use to do any andall kinds of work, it is illustrated in the drawings as used to drivereciprocating pumps, and as hereinafter described, it will be referredto as performing that function, but, of course,

the invention'is not at all limited to that particular purpose.

The device or machine is adapted to be made up of any desired number ofunits, and in the drawings, only one of these units is illustrated.

In the accompanying drawings which illustrate the invention, likecharacters indi-I cate like parts throughout the several views.

Referring to the drawings,

Figure 1 is a side elevation illustrating the invention; and

Fig. 2 is a plan view of the parts shown in Fig. 1.

The framework of the machinel may be of any suitable construction, butas shown in Fig. 1, it comprises a horizontally disposed frame bar 3having supporting legs 4 and certain other parts hereinafter to benoted. The Hoor structure is indicated by the numeral 5. The numeral 6indicates the cylinders of a pair of pumps, which cylinders, as

shown, are pivoted to brackets 7 rigidly secured on the floor structure5. Working within the cylinders 6 are pistons having long upwardly`projecting rods 8. The up'- per ends of the piston rods 8 are pivotallyconnected to the opposite ends of a walking beam 9' that isintermediately pivoted by a shaft 10 to abracket 11 that is rigid on theframe bar 3. a

Y Specification of Letters Patent. Application led April 11, 1917.Serial No. 161,209.

Patented Dee. 2; 19919.

The numeral 12 indicates a rocker shown as of skeleton form, beinginfact, a representation ofany segment of and up to a com'` pletewheelhaving its axis at 13. vThe pe-v riphery 14 of this rocker segment 12eng'ages upon the upper surface of the walking'beam 9. As shown, theengaging surface of the walking beam 9 and `segmental vsurface14 aresmooth, but when desired, may have any' usual anti-slippingconnection astoothed engagement. When ymade smooth, as shown, there is alpossibility' of slippage, and to prevent this, spring-pressed centeringrods' 15 are pivotally connected to the lower por! tion of said rocker'12 and to the opposite end portions of the walking beam 9, andmoreover, the said rocker is preferably provided with a dependingcentrally located fork 16 that loosely embraces the pivot shaft 10 ofthe said walking beam. Atits upper end, and on its opposite'sides,the'rocker 12 is; providedA with laterally spaced pairs vof arms 17 throughwhich work the upperend of tension rods 18as shown, four in number.Immediately above the arms 17, the rods l18l are" providedfwithshoulders or stop collars `19. At theirlower ends the rods 18 are con--nected in pairs by short rods 20, and these rods are connected to theopposite ends of a tension yoke 21, which, at its intermediate portion,has a pin 22 mounted for vertical sliding movements in a bracket 23rigidly secured to the ioor or underframeA structure 5.v The numeral l24indicates a toggle, thel lower arm of which is pivoted on the pin 22 andthe upper arm of which is pivoted at 25 to a bracket 26 fixed to theframe 3. The upper link of the toggle 24 has a projecting arm 27 that ispivotally connected to one end of a lever 28, which latter isintermediately pivoted to a bearing 29 rigid on the floor orf underframestructure 5. The outer end of' thisulever 28 is connected by a link 30to one end of a lever 31 that is intermediately piv" oted to the frame3. The outer end of the lever 31 is connected by ashort link 32 to, thecrank 33 of? a driving shaft '34 tha'tfi'sfV journaled in suitablebearings on the frame 3. ',Ihis lshaft 33 lmay be either directly orindirectly connected to a prime mover; Any one of the `several shafts ofthe machine may,

in fact, be used as a driving shaft, but for the purpose ofthepresent'description, the

said shaft 34 will be treatedV as the driving 110 shaft. As shown, it isprovided with apulley 35 over which a 'power-'driven belt 36 is' entlyappear.

arrangedl tol run. l yThe shaft A34 carries a. drive wheel shown in theform of a sprocket 37. At the oppositeend of the frame'3l locatedparallel to the shaft 34 isa similar shaft 38 also journaled in suitablebearings on-the frame 3, or elsewhere. This shaft .38 is proVid'edvvi-tha Sprocket 391 that is twice the diameter of the sprocket37.- -A longsprocket chain 4'0 runs over the alined sprockets 37 and 39, soV thatthe said shaft 38 Vwill be driven at one-half the speed of the which, asshown, is journaled in suitable bearings 46 on'the fioor'or underframestructure 5. The shafts 38 and 45 are driven at the same-speed,1to wit,at one-half the speed of theshaft 34. 1 `The shaft 3,8 isl provided withacrank 47 andshaft 45 is provided with acrank 48.- The crank 48 is setninety degrees aheadV of crank 47 in the clockwise direction of theirrespective rotations.

Crank 47 is connected by 'a link 49 to a 1 lever 50 kthat isintermediately pivoted at 51 to a bracket 52 on the frame 3. The longupper end 'of thislever 50 is connected by alink L53 to the upper end ofthe rocker 12. The crank 48 isv connected'y by 'a link 54,

to the outer` endof a lever 55 that is inter- "I vmediately pivotedto adepending 'bracket Y 56 ofthe frame 3. The inner end of the lever 55 isconnected by a linkv 57 lto vone end. ofthe walking'beam 9.: Y

Journaled yin 4any convenient point Nupon i. the 'construction is ashaft 58 carrying thereon a sprocket wheel 59 and aV clutch wheel 60.-vOver the sprocket 59 extends the sprocket chain 61, which also passesover v:the sprocket 41 from which vpower may be taken as described in.relation to said sprocket. n 5 n Y v,Ilulcrumed also upon `the sha-ft5.8 fare arms- 62 and 62', carrying pivoted thereon Y detents 63 Vand63, respectively. The detents 63'and 63 are heldfto'work upon the,clutch disk by fmeans. of springs 64 connectedtherewith atrone of theirends and at theiropposite ends to any `'convenient Pivoted also tothe'arms 62 and 62 are VVlinks 6 5'which in turn are pivoted to the1ever '66,-'pivoted to 'any rigid abutment. The leverl 66 is in turn'connected by link 67 to thewalking. beam ,9, so Vthat 'as [thewalk'ing-beam9' oscillates upon its pivot" l0 las hereinbeforedescribed, the lever 66- isjoscillatedfupon its pivotto the dotted' lineposition shown in Fig. Land-to a posi'- y tion upon theopposite side 'ofthe full line Y Y Y position'corlspbnding to such Vdotted -lineposition. L The .oscillation :Qfffthis lever 66;

Y shaft 58.

upon its pivot through the medium of the links 65 also oscillates thearms 62 and62 with oppositely rotative movement about the As the arms 62and 62 move upwardly ythe detent 63 engages the cam disk 60 and rotatesit in the direction forY rotation ofall of the parts, whereas when thearms 62and 62 move downwardly Yin l their rotative movement the detent63 engages such cam :disk 60 andV continues the Vrotative movementinitiated by the detent the rotative movement of the disk, and suchrotative movement of the sprocket 59 is imparted to the sprocket 41through the medium of the'chain 6l.

In the machine as designedu'it maybe asp sumed that all movements of therotary parts are clockwise, in respect to Fig. 1. Anyone of the threeshafts 34, 38 or 45 may be used as the driving member, but, as valreadystated, I assume that the power is practically delivered to. theso-called driving shaft 34. In Fig. 1,.the full lines yindicate what maybe called the dead center or neutral position ofthe rocker y12 and Aofthel walking beam 9. Under rotation of the driving shaft 34 in'aclockwise direction through; one-half rotation, they shafts 38 and 45willbe driven in the same direction but at half the speed thereof, andunder such movement, the walking beam, by movement of the lever 55, andthe rocker, by movement of the lever 50, will berocked into an obliquepositionat the right just reverse from that shown by. dotted lines inFig. 1. In fact,V the dotted lines, Fig. l-,indicatethe position of theparts after the shaft. Y34 has made one and one-half rotationYrand thecrank shafts 38 and 45 have 'been given three-fourths of a rotation.VYWhen the driv? ing crank shaft 34 has been given vone com-- pieterotation and the crank shafts 38 Yand i 45 have been giveny one-halfrotation, the rocker will be again back to the position in! dicated byfulllines in Fig. 1.

The lever connections 28, 30 and are, Y i

by the crank 32, so timed andoperated that the members of toggle24 willapproachV alinement, as indicated bydot'ted lines fin Fig. l, as therocker approachesthe limit of itsv oscillatory movement in ber dip,rection. VThls obviously, is Vbecause the saidi4 i toggle isgiven twostraightening operations for each complete .rotation of the cranks y47and 48. As the toggle24 isstraightened, it`Y Y pulls-the yoke 21down-and presses 'the collars or shoulders 19 of the tensionrods 18against the arms 17 of the rocker l2, and,f

walking beam is oscillating inthe one direc'-V Y f tion or :the otherfrom its horizontaler in- .125 ofcourse, it .doesthis ata time whenVtheVV ward force on the downwardly moving side of the walking beam. Whenthe walking beam reaches the limit of' its oscillatory movement ineither direction,the toggle will be completely extended, but by meansofthe rotation of the shaft 34 the toggle will at once relieve thewalking beam from this downward epressure, thereby permitting thewalking beam to be' freely returned to its horizontal normal positionunder the action of the crank 48, lever 55 and link connections, and atthe same time, vpermits theV rocker 12 to be freely restored to itsvertical neutral position by the crank 47 through the lever 50 and linkconnections.

Movements of the walking beam 9, as already indicated, will be utilizedto produce various different kinds of work, but in the drawings, itsoscillatory movement, as above described, of course reciprocates thepump pistons and operates the pumps. Of course, the two shafts 38 and 45will be continuously driven at one-half the speed of `the driving shaft34, and the shaft 58 is further driven from the walking beam 9' throughthe link 67, lever 66 and connections to the dogequi-pped arms 62 and62. More specifically stated, under upward movements of the links 65 andarms 62', operating on the clutch wheel 60, will rotate the shaft 58 ina clockwise direction and under downward movement of the said link 65thedog of the arm 62 operating on the clutch wheel 60 will drive thesaid shaft in a clockwise direction.

All of the parts of the machine are driven in proper synchronism, andthe toggle-actuating connections are timed in respect to thewalking-bearn-actuating connections and the rocker-actuated connectionsin the relation of two to one.

Any desired number of units, such as described, may-be employed andcoupled up, side by side, or otherwise, in a common machine. Whenthus-used, the corresponding cranks of the several units wouldpreferably be partly set, one ahead of the other, so as to give auniform application of power.v

What I claim is 1. A mechanism of the -kind described comprising awalking beam, a rocker having traveling engagement with said walkingbeam, from one side to the other of the pivot thereof, and means timedViii synchronism with the oscillation of said walking beam for rockingsaid rocker and for augmenting the weight of said rocker alternatelyupon the downwardly moving sides of said walking beam. p

2. A mechanism of the kind described comprising a walking beam, a rockerhaving traveling engagement with said walking beam from one side to theother of the pivot thereof; two cranks driven at the same speed and athird crank driven at twice the speed of the other two; connections fromone of ythe combination 4with a walking beam having connections forv,the delivery of power therefrom; of a rocker having travelingengagement with said walking beam from one side to the other of thepivot. thereof;

toggle with connections to said rocker for augmenting the weight of thesame upon thedownwardly moving sides of said walking beam; two cranksdriven at the same speed; a third crank driven at twice the speed ofsaid first-noted cranks; connections from one of said slow-moving cranksfor oscillating said walking beam; connections from the otherslow-moving crank for rocking said rocker, connections from said thirdor fastmoving crank for operating said toggle; the

said parts being timed in synchronism soA that said toggle willstraighten to press said rocker with augmented force,y alternately uponthe downwardly moving sides of said walking beam; andthe said vtogglewill be flexed to relieve the upwardly moving sides of said walking beamfrom said augmented force.

4. In a mechanism of .the kind described the combination with a walkingbeam; of a rocker superimposed thereon and having traveling engagementtherewith from one side to the other of the pivot thereof; a toggle.having connections to said rocker for forcing the-same downward withaugmented pressure upon the downwardly moving sides of said walkingbeam; a walking-beam-actuating crank with connections for oscillatingsaid walking beam; a rocker-actuating crank with connections for rockingsaid rocker; andatoggle-actuating crank with connections for oscillatingsaid toggle; and connections between said three Vcranks driv-v ing saidwalking-beam-actuating crank and rocker-actuatingV crank at the' samespeed; and driving said toggle-actuating crank' at twice the speed ofthe other two cranks whereby the said cranks will be operated insynchronism and the said toggle will straighten to force said rockerwith augmented pressure upon the downwardly moving sides of said walkingbeam, first on one side and then on the other of its pivot.

5. A mechanism of the kind described comprising a walking beam; a rockerhaving traveling engagement with said walking beam; from one side to theother of the pivot thereof; means timed in synchronism for oscillatingsaid walking beam for rocking said rocker and for pressing said rockeralternately against the downwardly moving sides of said walking beam;and a pawl and'ratchet driving rdevice operative from said walking beamandA transmitting its power to some of said crank shafts.

6. A mechanism of the kind described comprising a .walking beam; arocker having traveling engagement with said walking beam; from one sidetothe other of the pivot thereof.; means timed in synchronisni foroscillating saidwalking beam, for rock- Aing saidrocker and for pressingthe said rocker alternately against the downward moving. sides of saidwalking beam; vand mechanism operated from said walking beam. 1

7L In a mechanism of the kind described, the combination with a walkingbeam; of a rocker superimposed on said walking beam and having Vatraveling movement thereon from one side to the other of the pivotthere- Yof;a yoke; rods connecting said yoke to the upper portion ofsaid rocker; a toggle operative to depress and raise said yoke and rods;two relatively, slow-moving cranks'y operating at the. same speed'butset one ahead of the other; connections between one of said cranksand said walking beam for oscillating the' same; connections between theother ofy said cranks 4and said rocker for rocking the same; and a thirdcrank rotated Iat twice .the speed of said first-noted cranks andhavingconnections to said toggle for straightening andlflexing'the same,the said parts vbeing ldriven in synchronism and so timed that saidtoggle will straighten to produce an augmented downward pressure of saidrocker on the downwardly moving side Aof said walking beam, first on'theone side and then on the other, the flexing movement of the saidtoggle serving t'o alternately relieve the upwardly moving sides "ofsaidl walking beam from; the toggleproduced pressure "delivered throughsaid rocker.

T8. A mechanism of the kind described comprising a walking beam; arocker having traveling engagement'with said walk-l ing beam, from oneside tov the other of the pivot thereof; and means timed in synchronismfor oscillating said walking beam, forv rocking said rocker and foraugmenting the weight of ysaid rockeralternately upon the downwardlymoving sides of saidwalking beam; and a positioning device holding thepivot thereof; a yoke; rods connecting said Y yoke tothe upperfportionyof said rocker;a

toggle operative. to depress and raise said yoke and rods; tworelatively slow-moving cranks operating at the 'same speed but set.V

one ahead of the other; connections between one of said cranks and saidwalking beam for oscillating the same; connectionsibetween the other ofsaidV cranks and said rocker for rocking the same; and a third crankrotated atrtwice the speedl of said first-noted cranks and havingconnections to said toggle for straightening and flexing the same; thesaid parts being driven in synchronism and so timed that said togglewill straighten toproduc'e'an augmented downward pressure of said rockeron the downwardly moving side of-said walking beam,

first on Ythe oneside and then onthe other, the flexing movement of thesaid toggle serving to alternately relieve the upwardly -mov-V ing sidesof said-*walking beam from the toggle-produced pressure deliveredthrough said rocker; and a pawlan'd ratchet'driving deviceroperated fromthe oscillation yofthe saidV walking beam'.

l0. A VmechanismY of lthe kind described,v

comprisinga walking beam; a rockerr'superimposed upon and having atravelingmovement thereon from one side to the other of the pivotthereof; means for oscillating said walking beam; means for-*rockingsaid rocker in synchronism therewith softhat itsweightV will b'ethrown.alternatelyV upon the downwardly movingsides of said-walkingbeam; and means'for delivering power from said walking beam.l

Intestimony whereof I aiiix signature in presence of two witnesses. l Y

' Y WILLIAM H. 'FOLSOlvI VWitnesses: a Y Y j EDAVS; VVOLFF;l Y vKATHERINE WILLIAMS.

